Reversing-gear.



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:579B an Baader S. BAADER.

REVERSING GEAR.

APPLICATION FILLE SEPT.15,1914.

Patented Feb. 9, 1915.

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S. BAADBR.

REVBRSING GEAR.

APPLIUATION FILED SEPT.15.1Q14.

1,127,846. Patented Feb. 9, 1915.

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kS'ILSl'PHAN BAADEB, 0F PHILADELPHIA, PENNSYLVANIA.

BEVERSING-GEAB.

Speciication of Letters Patent.

Patented Fee. 191

Application filed September 15, 1914. Ser1a1No.861,756.

To all whom it may concern Be it known that I, STEPHAN BAADER, a citizen of the United Statesresiding at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Reversing-Gears, of which the following is a specification.

My invention relates to improvements in .reversing gears, the object of the invention being to provide a fluidfmovable member with a Huid lock normally holding the memberagainst movement, and provide a valve adapted to be manually operated to release the lock and move the member, and adapted to be automatically operated to stop the l member and apply the lock.

v mechanism and autximaticallir operated to A further object is topi-Ovide a fluid operated mechanismfor reversing the gear of a steam engine which can be manually operated with but slight exertion on the part ot' the operator.

A further object is to provide a Huid operated mechanism for reversing the gears of a steam engine in which a single valve controls the entire operation of the mechanism, said valvemanually operated to move the stop the movement.

.' A further object is to imp rove upon the construction disclosed in Patent No. 1,088,255 granted to me February 24, 1914.

Vith these and other objects in view, the invention consists in certain novel features of construction and combinations and arrangcinrnts of parts as will be more fully.

hereinafter described and pointed ont in the claims. ,L

In .the accompanying drawings :i Figure 1 is a View' in side elevation illustrating niv improvements. Fig. 2 is an end view of Fig. 1. ,Fig4 3 is a view in vertical section on the line 3-3 of Fig. 1. Fig. 4 is a view.

i'n horizontal section on the line 4 4 of YFig. 3.y Fig. 5 is a View in vertical trans-I verse section through the center of my improved valve. Fig. 6 is a top plan view of the valve casing. Fig. 7 is a view in verti cal section on the line 7 7 of Fig. 5. Fig.

` 8 is a view in section on the. line 8-S ot' Fig. 7. Fig. 9 is a View in verticalsection through' the 'valve casing lookingr in the opposite direction from `Fig. T. Fig. 10 is a face View of the valve iiiombei' A. and Fig. l1 is a face View of the valve; member P.

l represents a cylinder which is closed at its ends by heads 2 and 3 respectively, the latter having a stuffing box' 4 through which an operating rod 5 projects. This rod is secured to e. piston 6 within cylinder 1, and at its outer end is provided with an eye for connection with a link (not shown) of any approved link motion to cause the reverse ot' the engine as is, commonly understood. The cylinder 1 will be located :it any convenient point, adjacent the link motion, and at a point removed from the engine cab, and the niovei'nent of the piston 15 will be controlled by air or other fluid as will be hereinafter explained.

8 represents avialve casing which is secured on top of the cylinder 1, and is provided with iuid passages 9 and 10 communicating with passages 11 and,12 respectiiv'ely in the cylinder 1 connecting the passages 9 and l() with the respective ends of the cylinder.

The cylinder 1 is provided at one side with a flat plate 15 which may be integral with the cylinder, plate a guide bracket 16 is fixed. This bracket. 16 provided with guides 17 and 1S for a vertically movable block 19. This block 19 a rece-ss 20 with its upper and lower walls at an angle to the movement of the block, and in this'recess :2O a cam bar :'51 is positioned, moved longitudinally to cause the block 19 t0 move vertically for a purpose which will hereinafter appear. One end of the bar 21 is secured to a clamping yoke 22, and this clamping yoke is fixed to rod 5 and also to a. rod 23 which is located parallel with the rod 5. and is movable through a split clamp 21 connected to the lower portion of the cvlinder l, and said clamp is normally held in position to lock the rod 22 against movement by means of a piston 25 located in a Vcylinder 26. The cylinder '2,6 is located with members, and are screwed into threaded i' oiienings 31 in the integral ears 32 on the cylinder 26.

3? represents a fluid supply pipe which connects one end of the cylinder .26 with the top of valve casing 8, and is adapted to diif desired., and on this and .is adapted when.

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rect luifd to the cylinder 26, causing the pis ton 25 to move in one direction, and the cylinder 9.6 to move in the other direction and move the members 2l and 2lb' toward cach other to tightly grip the rod Q3 and hold rod 5 against movement. The cylinder 2G and piston 25 therefore constitute a fluid lock which normally holds the parts against movement, and must be released before the rod 5 can operate. .The passage of fluid to and from the cylinder 26 as well as the passage of fluid to and from the respective ends of the cylinder l, is controlled entirely by my improved valve mechanism located in casing 8, and comprising two cylindrical members A and B of an external diameter to fit within the cylindrical casing 8, and having their inner faces ground smooth so as to form a fluid cut. otl between them. Member B is provided centrally with an integral journal 3l projecting through abearing sleeve on casing 8, and provided at its outer end with a crank arm 36. This arm 38 is adapted to be manually operated and for the purpose I have shown a rod 37 wltilch is pivotally connected to the crank ar 4 and extends to the engine cab orY other convenient location for use, and it is to be vunderstood that this rod 37 may be operated by any means desired. Member B on its inner face, at its center, isprovided with a recessed bearing 38 in which a short arbor 39 integral with member A projects, so that the twolmembers of the valve are held-in pro er relative position to each other regar less=of the walls of the casing. Mem'- ber A has an integral journal 40 which projects through a stulling box 11 in a removable plate 42 secured to the end of the casin The journal 40 on its outer end is provi ed with a crank arm 43, and the latter is connected by a link #lll with the sliding block 19. It will therefore be noted that while member B is manually operated, member A is automatically operated by the block 19, and the latter is caused to move by the carb bar `21, as the piston 6 and rod 5 are'movetll by the fluid pressure. to an inlet port 45 in plate 42 by means of a supply pipe 46, and it will be noted particularly by reference to Figs. 5 and 8, that the' outer face of valve member A is recessed forming a Huid chamber 47 back of said valve member. Valve member A is provided in its inner face atits upper portion with a recess 48, and through this recessed portion 48, the valve member is provided with a V-shaped port 49 communicating at all times with the chamber 47. Around the ortl 49, valve member A is provided with a ap 50 flush with the surface of member A., so that the port 49 can extend from the periphery of the valve member an appreci- 'able distance into'the recessed portion 48 as it is to be understood that the lap 50 prevents any passage of fluid directly from port 49. into recess 48. Valve member B is Live fluid is supplied' provided in its periphery with a V-'shapcd port 51 of the same size, and normally registering with the port 49 iu member A, and these ports 51 and 49 normally register with a duct 52 in casing 8. The pipe 33 above referred to for controlling the flow ot fluid to the fluid lock communicates with this duct 52, so that the fluid lock is in normal operation. When member B is turned slightly in eitherdirection, the port 51 will be `moved out of register with port 49, and the lap 50 will cut oft' the supply of live fluid to the fluid lock.4 As soon as the port 51 moves over thelap 50, the fluid in the pipe 33 will exhaust through the port 51 into recess 48 and from the recess 48 through an opening 55 in member B, and from the latter through'a'n exhaust port 5l in casing 8, which latter discharges directly into the atmosphere'. Valve member A is provided with two ports 56 and 57 respectively located at opposite sides of the member and separated by relatively narrow laps 58 from a groove 59, said groove being. curved concentrically with the member and extending from one lap 58 to the other. Valve member B is provided with two ports 60 and 6l respectively located at opposite sides of the valve, and adapted when the two valve members are located together to normally regis-y ter with the respective ends of the vgroove 59, so that normally ,the ports 56 and 57 are closed by the member B.

62 is an opening in member B which a1- ways connects groove 59 in member A with an exhaust port 63 in casing 8, sothat the 'groove 59 is always in open communication with the atmosphere.

The ports 60 and 61 in member B are always maintained in communication with the passages 9 and '10 in casing 8, the ends of said passages 9 and 10 in the inner face of the casing being` suiliciently long to permit of this communication as shown clearly in the drawings.

The operation is as follows: Vhcny it is desired to'move the rod,5 tothe right of Fig 1, member B is manually tyfrned to the position shown inv Fig. 7 where it will be notedthat the port 51 connects the duct 5,2y

with the recess -18 in member A, and as the latter communicates with opening 55 in member B, the pressure in the fluid lock will be released, and the `rod 5 permitted t0 move. It will also be noted in Fig. -7, that when the valve member B is moved vto the position ther-ein shown, that port 60 offmem ber B registers with the port 56 of'mem ber A, and the'live fluid will flow Adiirectly through such registering ports and through the. passage 9 to the left hand end of the cylinder, causing the Diston G and'rod 5 to move to the right of Fig. 1. It will also be noted'that the port G1 connects pas-4 sage 10 with the exhaust groove 59, so that of said members constructed to be mauually connected, and the other of said members ci nstructcd to be automatically moved by the rod, substantially as describedt 9. In a reversing gear, the combination with a cylinder, a piston in the cylinder, and an rperating rod connected to the piston and projecting through one end ot the cylinder, of a fluid lock normally holding the rod against movement, a cambar secured to and movable with the rod, a valve controlling the flow of fluid to the ends of the cylinder and to the fluid leek, means for manually operating the valve to admit fluid to either end of the cylinder and to release the lock, and means operated by the cam bar to operate the valve to cut olf the supply of fluid to the cylinder and compel the operation ol" the lock, ,substantially as described.

10. In a reversing gear, the combination with' a cylinder, a piston in the cylinder, and an operating rod connected to the piston and projecting through one end of the cylinder, of a fluid lock normally holding the rod against movement, a cam liar secured to and movable with the rod, a valve controlling the flow olf fluid to the ends of the cylinder and to the fluid loolt, said valve comprising two members movable relative to each other, rnc of said members constructed tu be manually operated, and the (ther ot' said meinbers constructed to be operated by the cam bar, substantially ae described.

l1. ln a reversing gear, the combination with a cylinder, a piston in the cylinder, and an (perating rod connected to the piston and projecting thro ugh one end ot" the cylinder, ol. a, fluid lock normally holding the rod against movement, a cum bar secured to and movable with the rod, a valve controlling,r the flow of fluid to the ends of the cylinder and to the fluid lock, said valve comprising two rotary members, journals fixed to said members and projecting through the casingv` a manually operated clank arm connected lo one ol said memlers, a crank arm connected to the other of said members, Said last-mentioned crank arm constructed to btrperated by the cam bar, substantially as de scribed.

12. ln a reversing gear, the combination with a cylinder, a piston in the cylinder, and an operating rod connected to the pistou and projecting through one end of the cyl-` inder, ot' a lluid loclt normally holding the rod against inoven'ient, a cam oar serurcd to and movable with the rod, a valve control ling the llow of fluid to the ends ol the cylinder and to the fluid lock, said valve comprising two rotary members, journals fixed to said members and projecting through the casing, a manually operated crank arm connetted to one ot' said members, a crank arm connected to the other of said members, a sliding block, a l`n1l connecting the lastmentioned crank arm and block, and seid sliding'block having a recess through which the cam bar is movable, substantially as de scribed.

13. 1n a reversing gear, the combination with a cylinder, apiston in the rylindcr, and an operating rod connected to the nis`4 ton, and projecti g through one end ot' the cylinder,of a tlui loch normally hold' retire rod against movement., a cylindrical ive casing located adjacent the cylinder and having ports couununicating with the op posite ends ot the cylinder, a valve in said casing comprising two cylindrical members, means foi-.manually turning one ol said members, means for turning the othcrul' said members by the movement ot the rod, and said members having tluid pass ges therein controlling the tlow ot fluidl to t c ends of the cylinder and to the lock, substantially as described.

14. 1n a ,reversing gear, the combination Ywith a cylinder, a piston in the cylinder, and an operating rod connected to the pis ton, and projecting through one eri/l et' the cylimiler, of a fluid lock normally hold" ig the rod against movement, cyliiuriiai valve casing located adorent the cylinder and having ports continuhunting with the opposite ends of the cylinder, a valve in said casing comprising two cylindrical menu bers, means for manually turning one of said members, means for turning thc other oiF said members by the movement ot' the rod, means for admitting tluid to the valve casing in rear olf one ol' said numbers, beth or' said members having ports adapted to 'ce moved into register to permit the tlotv of fluid to either end ol' the cylinder and to e .fluid lock, and one ot' said members ln. grooves therein adapted lo register with openings in the other of said members, whereby the tluid from the ends of the casing and from the lock is permitted to exhaast through the valve, substantially as described.

l5. ln a reversing gear,l the combination with a cylinder, a piston in the cylinder, and an operating rod connected to the pis-- ton, and projecting through one cnd of the cylinder, of a fluid lock normally holding i the rod against movement, a. cylindrical valve casing located adjacent the cylinder and having ports communicating with they opposite ends ol' the cylinder, a valve in said casing comprising two cyliiulriral members, means for manually turning one of. said members, means for turning the other 'il' said members by the moieiucut ol' the rod, said members having lluid passages therein controlling the flow ot' fluid to the ends of the cylinder and to the lot-lt, iour nals on said members projecting lli: imgh the casing, crank arms on the journals, manually operated means for moving one of the lli) crank arms, and automatic means moved by the rod for moving the other of said crank arms, substantially as described.

16. In a reversing gear, the combination with a cylinder, a piston in the cylinder, and an operating rod connected to the piston, and projecting through one end of the cyl-rv inder, of a fluid lock normally holding the rod against movement, a cylindrical valve casing located adjacent the cylinder and having ports communicating with the opposite ends of the cylinder, a valve in said casing comprising two cylindrical members, means for manually turning one of said members, means for turning the other of said members by the movement of the rod, means for admitting fluid to the valve casing in rear of one of said members, both of said members having ports adapted to be moved into register to permit the flow of fluid to either end ol the cylinder and to the Huid lock, and one' of said members having grooves therein adapted to register with openings in the other of said members, whereby the fluid from the ends of the casing and 'from the lock is ermitted to exhaust through thehvalve, journals on said members projecting through the casing., crank arms on the journals, manually operated means for moving one of the crank arms, ,and automatic means moved by the rod for moving the other of said crank arms, substantially as described.

17. In a reversing gear, the combination with a cylinder, a piston in the cylinder, and an operating rod connected to the piston., and projecting through one end of .the cylw inder, of a Huid lock normally holding the rod against movement, a cylindrical valve casing located adjacent the cylinder and having ports communicating with the oppo` site ends of the cylinder', a valve in said casing comprising two cylindrical membersT means for manually turning one of said .members, means for turning the other of said members by the movementof the rod, and said members having fiuid passages therein controlling the liow of Huid to the ends of the cylinder and to the lock, Une of saidy members having a central bearing therein, the other of said members having a central arbor mounted to turn in the bearing. manually operated means for turning one of said members, and automatic o rating means for turning the other 0 said members, substantially as described.

18. In a. reversing gear, the combination with a cylinder, a piston in the cylinder, and an operating rod connected to the piston, and projecting through one end of the cylinder, of a fluid lock normally holding the rod against movement, a cylindrical valve casing located adjacent the cylinder and having ports communicating with the 0ppo site ends of the cylinder, a valve in said casing comprising two cylindrical members, means for manually turning one of said members, means for turning the other of said members by the movement of the rod,

means for admitting fluid to the valve casing in rear of one of said members, both of said members having ports adapted to be moved into register to permit the How of fluid to either end of the c linder and to the fluid lock, and one of sai members havin grooves therein adapted to register wit openings in the other of said members,

whereby the lluid from the ends of the casy ing and from the lock is permitted to exhaust through the valve, one of said members having a central bearing therein, the other of said members having a central arbor mounted to turn in the bearing, manually operated means for turning one of said members, and automatic .operating means for turning the other of said members, sub

stantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

STEPHAN BAADER. Witnesses C. R. Zreensn, S. W. Fos'rna. 

